The stone temple complex of Göbekli Tepe in Turkey, built at the end of the last ice age with stones weighing from 10 to 15 tons, shows a level of sophistication that was unmatched until the much later rise of Sumer, Egypt, and Babylon. Was it built in response to the Great Flood, and were the Watchers of the Book of Enoch and the Anunnaki gods of Sumerian tradition behind its construction?